package com.anxuan.lab2.demo1;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.SpringApplicationRunListener;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.event.ApplicationEventMulticaster;
import org.springframework.context.event.SimpleApplicationEventMulticaster;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Component;

import java.util.concurrent.Executor;


@Configuration
public class Lab2AutoConfig01 {

    @Autowired
    private Executor myTaskAsyncPool;

    @Bean(AbstractApplicationContext.APPLICATION_EVENT_MULTICASTER_BEAN_NAME)

    ApplicationEventMulticaster customApplicationEventMulticaster(){

        SimpleApplicationEventMulticaster eventMulticaster = new SimpleApplicationEventMulticaster();

        eventMulticaster.setTaskExecutor(myTaskAsyncPool);

        return eventMulticaster;


    }


    public static class NoticeEvent extends ApplicationEvent {


        private static final Logger logger = LoggerFactory.getLogger(NoticeEvent.class);

        private final String message;

        public NoticeEvent(String message){
            super(message);
            this.message = message;
            logger.info("添加线程成功! message:{}",message);
        }

        public String getMessage(){
            return message;
        }
    }


    @Component
    static class NoticeListener implements ApplicationListener<NoticeEvent> {
        private static final Logger logger = LoggerFactory.getLogger(NoticeListener.class);

        @Override
        public void onApplicationEvent(NoticeEvent noticeEvent) {
            logger.info("事件监听器获取到NoticeEvent,睡眠当前线程2秒");
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            logger.info("NoticeEvent 的 message 属性是：{}",noticeEvent.getMessage());
        }
    }


}
